(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

That's a graph of Force in newtons (y axis) vs displacement in meters (x axis) for an object of mass 3.0kg that is moving along the x-axis and initially starts at rest. I am being asked to find the total work done on the object as it moves from x = 0 to x = 7.

2. Relevant equations

Net Work = ∫F dx = ΔK

K = 1/2mv^2

3. The attempt at a solution

So, I integrated the function and ended up with a total work of -.5J. What I want to know is if this violates the work-energy theorem or not. If the net work is equal to change in kinetic energy, and the object starts at rest, this would mean that -.5 = 1/2mv^2. Is there something really obvious that I'm missing here?

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# Homework Help: Work done by a variable force question

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